xper,xns,xew,xco
0.100000001 , 1.97128487 , 2.74764037 , 892.650024
0.200000003 , 3.36020565 , 3.79829049 , 1031.25000
0.300000012 , 4.51307631 , 2.71888328 , 1031.25000
0.500000000 , 2.69527745 , 2.20950007 , 1031.25000
1.00000000 , 1.83717799 , 1.66394436 , 562.650024
2.00000000 , 0.605338216 , 0.529727161 , 281.325012
3.00000000 , 0.145325452 , 0.141935512 , 187.688004